Finding the Fourth Proportional to 23,518.57, 32,456.01 and 12,909.19

Step by Step Solution

1. Step 1: Write the proportion equation
   23,518.57 : 32,456.01 = 12,909.19 : x
2. Step 2: Convert to fraction form
   23,518.57/32,456.01 = 12,909.19/x
3. Step 3: Cross multiply
   23,518.57x = 32,456.01 × 12,909.19
4. Step 4: Simplify right side
   23,518.57x = 418,980,637.45
5. Step 5: Solve for x
   x = 418,980,637.45/23,518.57
6. Step 6: Final answer
   x = 17,814.89